Wiring diagram - ELECTRIC STEERING - Fiat BRAVO 1.4 16v
Components - ELECTRIC STEERING - Fiat BRAVO 1.4 16v
| Component code | Description | With reference to the assembly |
| B001 | JUNCTION UNIT | |
| B002 | JUNCTION UNIT UNDER DASHBOARD | |
| B099 | MAXI FUSE BOX ON BATTERY | - |
| C001 | BATTERY EARTH | - |
| C038 | EARTH ON CENTRE TUNNEL | - |
| D001 | FRONT/DASHBOARD COUPLING | - |
| E050 | INSTRUMENT PANEL | |
| H001 | IGNITION SWITCH | |
| H090 | SWITCH CONTROL PANEL | |
| M001 | BODY COMPUTER | |
| M086 | ELECTRIC STEERING CONTROL UNIT | |
| R010 | MULTIPLE TESTER CONNECTION | - |
Component location - ELECTRIC STEERING - Fiat BRAVO 1.4 16v
| Component code | Description | With reference to the assembly |
| B001 | JUNCTION UNIT | |
| B002 | JUNCTION UNIT UNDER DASHBOARD | |
| B099 | MAXI FUSE BOX ON BATTERY | - |
| C001 | BATTERY EARTH | - |
| C038 | EARTH ON CENTRE TUNNEL | - |
| D001 | FRONT/DASHBOARD COUPLING | - |
| E050 | INSTRUMENT PANEL | |
| H001 | IGNITION SWITCH | |
| H090 | SWITCH CONTROL PANEL | |
| M001 | BODY COMPUTER | |
| M086 | ELECTRIC STEERING CONTROL UNIT | |
| R010 | MULTIPLE TESTER CONNECTION | - |
Description - ELECTRIC STEERING - Fiat BRAVO 1.4 16v
The EPS (Electrical Hydraulic Power Steering) is a power assisted steering device designed to reduce the effort required for steering the vehicle by using the torque from an electric motor.An electronic control unit manages and controls the system: processing the input information and using the internal operating logic, the control unit determines the direction of rotation and the supply current for the electric motor producing the desired servo-assistance effect.A dedicated button in the control unit in the centre of the dashboard, right side can be used to alter the power-assistance level of the electric steering (CITY function).An electric power steering failure warning light is present on the instrument panel.CITY function activation is indicated by a warning light on the control panel.For more detailsThe control unit power supply lines are protected by a special maxifuse located on the battery; the ignition-operated supply is protected by a dedicated fuse in the engine compartment junction unit.
Functional description - ELECTRIC STEERING - Fiat BRAVO 1.4 16v
The electrohydraulic power assisted steering control unit M86 controls and regulates the electrically operated steering system.The direct power supply for the control unit arrives from the battery via the line protected by fuse F72 of the maxifuse box on the on battery B99 C at pin A of connector A of M86.Pin B of connector A of M86 is earthed.The ignition-operated power supply arrives via a line protected by fuse F24 of the engine compartment junction unit B1 at pin 1 of connector B of M10 .The Body Computer M1 receives a direct supply from the battery via the line protected by maxifuse B99 at pin 18 of connector F of the interface with the junction unit under the dashboard B2; the ignition-controlled supply (INT) reaches pin 9 of connector F of the interface with the junction unit B2.Control unit M86 is connected via the CAN - pins 7-8 and 5-6 of connector B - to the other nodes and in particular Body Computer M1 and instrument panel E50, to which it sends signals for the electric power steering warning light and the CITY function activation signal.The CITY function selection button (less effort to turn the steering wheel) is located in the control panel in the centre of the dashboard, driver''s side H90 connector A: the CITY function on signal is sent to pin 20 of connector H of M1 and from there via the CAN to control unit M86.The autodiagnostic data can be read by connecting to connector C of the Body Computer M1 - pin 9: it receives signals from pin 4 connector B of M86 via the dedicated diagnostic line.On right hand drive versions there is also diagnostic connector R10 separate from the Body Computer.
